<template>
   <el-container class="home-container">
      <!-- 头部区域 -->
  <el-header>
      <div>
          <img src="../assets/heima.png" alt="">
          <span>电商后台管理系统</span>
      </div>
     <el-button type="info" @click="logout">退出</el-button>
     </el-header>
     <!-- 页面主题区域 -->
  <el-container>
   <!-- 侧边栏 --> 
    <el-aside :width="isCollapse ? '64px':'200px'">
        <div class="toggle-button" @click="toggleCollapse">|||</div>
 <el-menu background-color="#333744"
  text-color="#fff" 
  active-text-color="#409eff" unique-opened :collapse='isCollapse' 
  :collapse-transition='false' router  :default-active="activePath"
>
    <el-submenu :index="item.id+''" v-for="item in menulist" :key="item.id">
        <template slot="title">
          <i :class="iconsObj[item.id]"></i>
          <span>{{item.authName}}</span>
        </template>
        <!-- 二级菜单 -->
          <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id"
          @click="savaNavState('/'+subItem.path)">
                <template slot="title">
          <i class="el-icon-menu"></i>
          <span>{{subItem.authName}}</span>
        </template>
          </el-menu-item>
      </el-submenu> 
    </el-menu>
    </el-aside>
    <!-- 右侧内容主体 -->
    <el-main>
        <router-view></router-view>
    </el-main>
  </el-container>
</el-container>

</template>

<script>
export default {
    data(){
        return{
            menulist:[],
            iconsObj:{
         '125': 'iconfont icon-user',
         '103': 'iconfont icon-tijikongjian',
         '101': 'iconfont icon-shangpin',
         '102': 'iconfont icon-danju',
         '145': 'iconfont icon-baobiao'
      },
       isCollapse: false,
       activePath: ''
        }
    },
    created(){
        this.getMenuList()
         this.activePath = window.sessionStorage.getItem('activePath')
    },
methods: {
    logout(){
        window.sessionStorage.clear()
        this.$router.push('/login')
    },

 async getMenuList() {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menulist = res.data
      console.log(res)
    },
    toggleCollapse(){
     this.isCollapse=!this.isCollapse
},
    saveNavState(activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath}
 }
}
</script>

<style lang='less' scoped>
.home-container{
    height: 100%;
}
.el-header{
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #fff;
    font-size:20px ;
    > div {
       display: flex;
       align-items: center;
       span{
           margin-left: 15px
       }
    }
}
.el-aside{
    background-color: #333744;
    .el-menu{
        border-right: none;
    }
}
.el-main{
    background-color: #eaedf1;
}
.iconfont{
    margin-right: 10px;
}
.toggle-button{
    background-color: #4a5064;
    font-size: 10px;
    line-height: 24px;
    color: #fff;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;
}


</style>